I am interested to see that there are no source resistors on the output devices even though each channel uses 6 parallel mosfets on each rail. This is claimed to be possible due to super matching of the output devices. I wonder what the bias current is.

Originally posted by AMV8 Lineup
Great find.
I am interested to see that there are no source resistors on the output devices even though each channel uses 6 parallel mosfets on each rail. This is claimed to be possible due to super matching of the output devices. I wonder what the bias current is.
Does anyone have any knowledge of the circuit?
Has anyone heard one?

I wondered if the amplifier used the old Hitachi mosfets. I still have a number of those. I still think they sound like one of the best output devices. Although more recently I have been bying the IRF240/IRFP240.

I also find bears comments on the size of the power supply required interesting. He finds as I have, that a larger power supply does provide more clarity on complex music passages, especially if a large dynamic range is associated with that passage.